Scotland captain Robertson played in the Premier League win over Fulham on Sunday and is set to be replaced at left-back by Kieran Tierney.

Robertson underwent treatment on Monday but he has been told by medical staff that he needs more time for his mouth to settle down.

The defender will now make his own way to Italy on Friday ahead of Scotland’s second qualifier against San Marino.

Tierney sat out training in an indoor arena in Astana on Tuesday but did some work on his own back at the team hotel after playing through a niggle during Celtic’s win over Dundee on Sunday. He is expected to be fit.

Aberdeen centre-back Scott McKenna trained with his team-mates after doing an individual warm-up after playing through a thigh strain on Saturday.

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